virtual/linux-sources: Use 6.6 as default kernel

BUG=b/316205830
TEST=presubmit, validation
RELEASE_NOTE=None

Change-Id: Id7f1a163e4538bd353506cf901b0a2fdcdcebaae
Reviewed-on: https://cos-review.googlesource.com/c/cos/overlays/board-overlays/+/76799
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Oleksandr Tymoshenko <ovt@google.com>
diff --git a/project-lakitu/virtual/linux-sources/linux-sources-1.5-r8.ebuild b/project-lakitu/virtual/linux-sources/linux-sources-1.5-r9.ebuild
similarity index 100%
rename from project-lakitu/virtual/linux-sources/linux-sources-1.5-r8.ebuild
rename to project-lakitu/virtual/linux-sources/linux-sources-1.5-r9.ebuild
diff --git a/project-lakitu/virtual/linux-sources/linux-sources-1.5.ebuild b/project-lakitu/virtual/linux-sources/linux-sources-1.5.ebuild
index ba7b834..392cff2 100644
--- a/project-lakitu/virtual/linux-sources/linux-sources-1.5.ebuild
+++ b/project-lakitu/virtual/linux-sources/linux-sources-1.5.ebuild
@@ -45,8 +45,8 @@
 	$(for v in "${IUSE_KERNEL_VERS[@]}"; do echo "!${v}? ( !sys-kernel/lakitu-${v} )"; done)
 "
 
-# Default to the 5.15 kernel if none has been selected.
-RDEPEND_DEFAULT="sys-kernel/lakitu-kernel-5_15"
+# Default to the 6.6 kernel if none has been selected.
+RDEPEND_DEFAULT="sys-kernel/lakitu-kernel-6_6"
 
 # Here be dragons!
 RDEPEND+="